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drawDB

Free online database diagram editor with SQL generation. Create ER diagrams, visualize relationships, export scripts, and reverse engineer schemas - no signup required.

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Free and intuitive database design tool that lets you create professional entity-relationship diagrams and generate SQL scripts without any account registration. Perfect for developers, database administrators, and data architects who need quick visualization solutions.

Key features include:

  • Visual diagram editor with drag-and-drop functionality for tables, relationships, and constraints
  • Multi-database support for MySQL, PostgreSQL, SQLite, MariaDB, and SQL Server
  • SQL script generation with DDL export capabilities for immediate database implementation
  • Reverse engineering to import existing DDL scripts and automatically generate visual diagrams
  • Template library with pre-built structures and custom template saving for recurring projects

Advanced capabilities:

  • Issue detection system that identifies diagram errors before script generation
  • Presentation mode for team meetings and collaborative discussions
  • Customizable workspace with adjustable UI components and keyboard shortcuts
  • Object-relational database support with custom types and JSON schema creation
  • Task tracking with built-in todo management for project organization

The tool operates entirely in your browser with local storage, ensuring privacy and speed while maintaining full functionality. Export options include SQL scripts, JSON files, and image formats for documentation purposes.

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